Tool used: 7Taps
When I taught French to adults, one of my favorite things was sharing quick tips that made immediately noticeable improvements to their pronunciation; it helped boost engagement and motivation. That served as the inspiration for this tutorial. I wanted to keep it short, so I focused on a single sound, gave simple examples, and encouraged practice. I created a storyboard in MS Word and then developed the tutorial. I would envision this as one in a series of "brush up" tutorials. A learner could easily go through the tutorial during their free time.
Tools used: PowerPoint and Camtasia